How to check PCM?

Asked by hugoarteaga Dec 09, 2014 at 11:43 AM about the 2000 Chevrolet Cavalier Sedan FWD

Question type: Maintenance & Repair

PCM 10A fuse in the passenger fuse block has melted. I put a good fuse but the car does not get ignition. Gas Pump Relay does not get activated.

2 Answers
205

JBuch97 answered 9 years ago

You will need a Fuel Injector Noid Light, a multimeter, and another person . One to keep eye on light and multimeter and another to crank car. Locate fuel injector and disconnect, insert noid into connector, have asstinant crank car. repeat on other three.

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205

JBuch97 answered 9 years ago

Noid light Flashes circuit okay, noid light did not flash power or on/off signal from pcm is missing, noid light lit brightly but did not flash pcm is shorted to ground. So before you buy a new computer, get a wiring diagram for your car and check the wires connections.

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